Looking for Rd-03e Module? Ai-Thinker Rd-03E Radar Sensor Module is available at Zbotic with fast shipping across India.
Description:
The Rd-03 is a radar module created by Ai-Thinker, featuring the S3KM1110 chip from Iclegend. The S3KM1110 is a SoC that integrates a microcontroller and a mmWave sensor, utilizing FMCW radar transceiver technology. Operating in the K-band at 24GHz, the Rd-03E offers a modulation bandwidth of up to 1GHz for each single-frequency sweep. It employs FMCW frequency modulation continuous wave for target detection within a predefined space. This technology, combined with advanced radar signal processing, enables the detection of high-sensitivity motion and micro-motion.
This module is capable of detecting the presence of moving or micro-moving human bodies within a specified area, providing real-time detection results. It comes with a visual configuration tool that simplifies the setup of sensing distance range, sensitivity at various intervals, and the delay time for unmanned periods.
Specifications:
- Model: Rd-03
- Package: DIP-5
- Size: 20.0*20.0(±0.2)mm
- Antenna: On-board antenna
- Frequency: 24G ~24.25GHz
- Operation temperature: -40℃ ~ 85℃
- Storage environment: -40℃ ~ 125℃, 90%RH
- Power supply: Support voltage 3.0V ~ 3.6V, power supply current ≥200mA
- Interfaces: UART
- UART rate: Default 115200 bps
Features:
- The radar antenna supports 1 reception and 1 transmission, with a narrow antenna beam, high resolution, wide frequency band, and strong anti-interference ability.
- The farthest sensing distance of the radar is up to 6.5 meters.
- Large radar detection angle, coverage up to ±60 degrees.
- Ultra-small module size: 20*20mm, plug and play, real-time reporting of detection results.
- Rd-03E has high sensitivity, accurate ranging, and wide detection range.
- The intelligent parameter adjustment of the radar can be realized through the serial port, which is convenient and fast.
- Rd-03E support various installation methods such as ceiling hanging and wall hanging.
Package Included:
1 x Ai-Thinker Rd-03E Radar Sensor Module
Datasheet:
Ai-Thinker Rd-03E Radar Sensor Module Overview
The Ai-Thinker Rd-03E Radar Sensor Module is a compact mmWave radar detection unit based on the S3KM1110 SoC. Operating in the 24 GHz K-band with FMCW technology, it’s designed for high-sensitivity motion and micro-motion detection in a small DIP-5 footprint.
Key Features of Ai-Thinker Rd-03E Radar Sensor Module
- Built-in S3KM1110 chip integrating MCU and mmWave transceiver
- 24 GHz to 24.25 GHz FMCW radar with up to 1 GHz modulation bandwidth
- On-board antenna in a 20 × 20 mm (±0.2 mm) DIP-5 package
- Wide operating range: –40 °C to 85 °C, storage up to 125 °C, 90% RH
- Supports 3.0 V to 3.6 V supply with ≥200 mA current
- UART interface at default 115200 bps for easy host integration
- Fast shipping from Zbotic across India
Applications and Use Cases
- Human presence and movement detection in smart lighting systems
- Touchless gesture recognition for consumer electronics
- Occupancy sensing in HVAC and energy management
- Intrusion alert in security and surveillance setups
- Fall detection in elderly care and medical monitoring
- People counting and traffic analysis in retail environments
How to Use Ai-Thinker Rd-03E Radar Sensor Module
Simply solder the Rd-03E into your PCB or plug into a DIP socket, supply 3.3 V and ground, then connect TX/RX lines to your microcontroller’s UART (115200 bps). Use the manufacturer’s demo protocol to start receiving range and velocity data, and integrate the output into your application’s signal-processing routine.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
What interface does the Rd-03E use?
The Rd-03E communicates over a UART interface at a default baud rate of 115200 bps, allowing straightforward integration with most microcontrollers and host processors.
What voltage and current requirements are needed?
This module operates from 3.0 V to 3.6 V and requires a minimum of 200 mA to power both the S3KM1110 chip and its radar transceiver.
How do I mount the Rd-03E on my board?
The Rd-03E comes in a standard DIP-5 package (20 × 20 mm). You can solder it directly to your PCB pads or insert it into a compatible DIP socket for prototyping.
Technical Specifications
| Brand | Ai- Thinker |
|---|---|
| SKU | AI5658 |
| Availability | Out of Stock |
Applications & Use Cases
The Ai-Thinker Rd-03E Radar Sensor Module is a versatile ai thinker esp modules used across a wide range of applications including WiFi-enabled IoT devices, smart home sensors, web servers, mesh networks, and wireless data logging.
Common use cases:
- Connecting an Arduino project to WiFi
- Building a smart plug or switch
- Creating a wireless sensor network
This product is ideal for IoT developers, home automation enthusiasts, and embedded engineers.
Technical Tip: ESP32 supports both WiFi and Bluetooth. ESP8266 is WiFi-only but more affordable. Both are programmable via Arduino IDE or ESP-IDF.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Ai- Thinker product sourced from authorized channels
Mayank Kumar (verified owner) –
Love this Ai-Thinker Rd-03E Radar Sensor. Built a smart switch with it. Works with Home Assistant perfectly.
Sumit Choudhury –
Great Ai-Thinker Rd-03E Radar Sensor. OTA updates work perfectly. Using 5 of these around my house.
Gauri Shetty (verified owner) –
Great quality Ai-Thinker Rd-03E Radar Sensor. Flashed with ESPHome and it works beautifully.
Devansh Chauhan (verified owner) –
Excellent for smart home projects. This Ai-Thinker Rd-03E Radar Sensor connects reliably to my router.
Karan Ghosh (verified owner) –
Perfect for my IoT project. This Ai-Thinker Rd-03E Radar Sensor has excellent WiFi performance.
Jatin Luthra (verified owner) –
Love this Ai-Thinker Rd-03E Radar Sensor. Built a smart switch with it. Works with Home Assistant perfectly.
Lakshya Srivastava (verified owner) –
Outstanding Ai-Thinker Rd-03E Radar Sensor! Programmed it with Arduino IDE. All features work as documented.
Kavya Thakur (verified owner) –
Perfect for my IoT project. This Ai-Thinker Rd-03E Radar Sensor has excellent WiFi performance.
Rashmi Deshpande (verified owner) –
Great Ai-Thinker Rd-03E Radar Sensor. OTA updates work perfectly. Using 5 of these around my house.
Aman Luthra (verified owner) –
Outstanding Ai-Thinker Rd-03E Radar Sensor! Programmed it with Arduino IDE. All features work as documented.
Aarav Singh (verified owner) –
Perfect for my IoT project. This Ai-Thinker Rd-03E Radar Sensor has excellent WiFi performance.
Parth Rathore (verified owner) –
This Ai-Thinker Rd-03E Radar Sensor is amazing for home automation. Connected all my smart devices easily.
Aanya Dubey (verified owner) –
Love this Ai-Thinker Rd-03E Radar Sensor. Built a smart switch with it. Works with Home Assistant perfectly.